Rayon yarn spinning machine



May 15, 1934. J YAZBIK 1,958,777

RAYON YARN SPINNING MACHINE I Filed March 16, 1931 2 Sheets-Sheet l May 15, 1934. J, YAZBIK 1,958,777

RAYON YARN SPINNING MACHINE Filed March 16, 1931 2 Sheets-Sheet 2 I Hi IVIIIII.IIII P n) gfos eph kxzbilg W4 mi'onmgl Patented May 15, 1934 UNITED STATES RAYON YARN SPINNING MACHINE Joseph Yazbik, Utica, N. Y., assignor of one-half to William A. Ainsworth, Utica, N. Y.

Application March 16, 1931, Serial No. 522,975 7 Claims. (01. 1s s)- This invention relates generally to the viscose process of producing rayon and more particularly to the mounting of the revolubly mounted pots whereby the rayon cake, which is received there- 5 in, may be quickly removed therefrom and empty pots substituted in their places.

In the viscose process the cellulose pulp is forced through spinnerettes into a bath of acid whereby filaments are formed. These filaments are drawn orcarried upwardly over a feed wheel and then are pulled downwardly through the usual glass funnel from which the rayon filament or yarn is twisted and wound interiorly of the centrifugal pot.

15 In the types of machines previously made for the production of rayon considerable time has been required to change the pots containing the cakes of rayon with the result that the thread or yarn which continuously issues from the spinnerettes 20 is wasted. That is, during this interval when the full pots are being removed and empty ones inserted the yarn is being wound about the glass pulley or feed wheel and such material is regarded as waste product insofar as the finished and pri- 2 mary product is concerned. As a matter of fact these pots must be changed every few hours in order that they may be emptied and from five to ten minutes is required for this manipulation.

Thus, during this time, the yarn or filament is continuously being forced through the spinnerettes and wasted as no means is available for its twisting and spinning until the empty pot is placed in proper position.

Now, it is a primary object and purpose of my invention to overcome the defect just recited by mounting a series of pots upon a revoluble cylindrical frame whereby the full pots may be removed from underneath their respective funnels and empty ones quickly inserted in their place thus preventing any or Very little waste from occurring.

Another feature of my invention lies in my novel dumping arrangement whereby the cakes are dumped from their pots upon a moving conveyor and thus carried away from the machine.

Still another feature is my novel braking means which automatically operates to slow down and check the rotation of the pots after they have been removed from their operating positions.

Yet another advantage resides in my novel means for threading the'yarn or filaments down into the funnel therebeneath.

Furthermore, novelty lies in my operating means for simultaneously withdrawing the funnels upwardly and revolving the cylindrical frame carrying the pots whereby a quick change of the pots is secured.

Other objects, advantages and meritorious qualities reside in the special construction, combination and arrangement of the various elements forming the invention as more fully hereinafter described and claimed, reference being had to' the accompanying drawings forming part hereof, wherein:

Figure 1 is a side view of a machine embodying my invention.

Figure 2 is a view in cross section taken through one of the centrifugal or spinning pots, the funnel being shown in its operating position.

Figure 3 is a view looking at the right end of Figure 1, the driving gears for the cylindrical frame being shown in dotted lines.

Figure 4 is a view similar to Figure 3 but showing the several parts in cross section.

Figure 5 is an underplan View of the cylindrical frame illustrating the mechanism for unlocking the lids of the pots. This view is taken in the directions indicated by arrow A, see Figure 1.

Similar numerals refer to similar parts throughout the several views.

Referring to the drawings and particularly to Figs. 1, 3 and 4, numeral designates a main frame member, said frame member having upper and lower brackets, '11 and 12, respectively, these brackets supporting motors 13 and 14, respectively.

Shafts and 18 are journaled in the top part of the frame, shaft 15 being driven by the motor 14 and shaft 18 being driven by shaft 15 through the gears 16 and 17. See Figs. 1 and 4. The mechanism driven by shaft 18 will be later referred to in the specification.

Near the upper part of the frame brackets 19 extend upwardly, these brackets revolubly supporting the stub shafts 20, these stub shafts 20 carrying glass rollers or feed wheels 21 at one of their ends, respectively, and beveled gears 2 2 at the opposed ends of the shafts. Each of the'brackets' and the mechanism mounted thereon forms a single unit and it is within the purview of my invention to utilize as many units as desired. The bevel gears 22 mesh with bevel gears 23 on the shaft 15, see Fig. 4, and the feed whee1s21 are driven therefrom. The filament or yarn 25 is fed over itsfeed wheel 21.

A vertically positioned shaft 24 is mounted in bearing blocks 26 alongside of the main frame 10 and is driven from the shaft 15 through the bevel gears 27 and 28. As shown in Fig. 1 a suitable clutch 29, operated by the lever 30, is located be- 54 which is mounted upon the shaft 55.

tween the shafts 24 and 15 and thus the shaft 24 may be driven at the desired period. The shaft 24 drives the conveyor 32 through the gearing 31 and hence the rayon cakes are carried from beneath the machine to a point exterior thereof when desired. Such an operation occurs just after the rayon cakes have been dumped out of their pots and the clutch 29, ac-

tuated by the lever 30, controls the operation of this conveyor belt.

A cylindrical or box-like frame has opposed plates 35 and 36. Additional plates 37 and 38, respectively, are mounted on the plates 35 and 36 but spaced a slight distancetherefrom. These plates just described serve as a mounting for the centrifugal or spinning pots. There are four of these pots shown in the structure herein described but it is obvious that there may be as many sets of these pots as desired. As each of the pots is similarly mounted only one will be described in detail. 1

Referring now to Fig. 2, 4O designates the pot proper having an outwardly extending flange 41 thereon. A shaft 42 is affixed to the bottom of the pot and is revolubly mounted in or through the plate 36 and has a bevel gear 43 at its lower end.

A shaft 51 extends rigid with and in prolongation of the shaft of the motor 13 and serves as a ,means to revolubly turn the main box-like or cylindrical frame. A sleeve 52 is revolubly mounted on the shaft 51 and is fastened to one end of the main frame and at the other end to the gear 53. This gear 53 meshes with the gear Belt means 58 extends from the motor 13 through the clutch 56-to drive the shaft upon proper manipulation of the lever member 57.

The shaft 51 has bevel gears 44 fixed thereto, each of these gears 44 being adapted to mesh with the gear 43 located at its upper side. As is clearly shown in the drawings the pots are mounted to slide up and down and hence the gears 43 only come into mesh with the gears 44 when the pots are thereabove. It is obvious that any suitable clutch means might beplaced between the beveled gear 43 and the shaft 42, thus allowing continual engagement between the gears 43 and 44, but I deem it unnecessary to illustrate the same as the mechanism herewith described is properly operable. A rubber or friction ring 45 is fixed to the outer plate 38 and is engaged by the flange 41 whenever the pots are in inverted position. Thus, upon inversion thereof, the pots are quickly brought to a stop.

. As the spinning pots revolve at a high rate of speed, say several thousand revolutions per minute, such braking means are very desirable.

The outer frame members 37 and 38 have shafts 46 revolubly mounted thereon in bearings 4'7. See Fig. 5. Each of these shafts 46 has pinions 48 located at one end thereof. The pinions 48 mesh with and are driven by the rack 49 on the end of the rod 61, these rods being reciprocable in bearings 60. Arms 63 are rigidly connected to and move with the shaft 46 and lids 62 are fixed to the free or swinging end of these arms. Thus, by manipulation of the rod 61 the shaft 46 is revolved and the lid or cover 62 removed from its individual pot. See Figs. 2 and 5.

Referring to the shaft 18, previously referred to, 65 indicates an eccentric or crank at either end thereof. Pitmans 66 are connected thereto so as to partake of their motion and hence reciprocate in a vertical direction. See Fig. 3.

Links 67, having slots 68 therein, are pivoted to the lower end of the pitman 66. Corresponding slots 69 are formed in the sides of the main frame 10 and a beam member '70 extends through the several slots and it moves up and down due to the actuation of the shaft 18 through the linkage just set forth. Thus a lost motion connection is formed.

The beam '70 has structure '71 extended from the top thereof and this structure '71 serves to support the funnel '72 through which the yarn or filament 25 passes. Hence, as the motor 14 operates, and drives the mechanism between the shaft 15 and the structure '72, the structure '72 is caused to rise and'fall and thus control the funnel '72 so that it will raise and lower as the filament 25 is passing therethrough and thus cause the filament 25 to properly pile up within its pot 40.

Flexible elements 74 are connected to either end of the frame member '71 and lead over suitable pulleys to the lever 97 which is mounted upon the shaft 98, the pivot of the lever 5'7, whereby the operation of this lever causes disengagement of the funnel member '72 from the pot whereby the main frame member may be revolved thus bringing empty pots underneath the several funnels.

A reservoir is located alongside of the frame member 10 and has the usual goose neck 81 leading thereinto. A spinnerette 82 is located at the end of this goose neck in the usual manner and the viscose solution is forced therethrough out into the acid bath 83 which hardens it and then the yarn or filament 25 is lead upwardly over the glass pulley 21 and then downwardly through the funnel member '72 and is twisted and wound interiorly of the several pot members in a manner well understood by those skilled in this art.

A supply pipe 84, controlled by the valve 86, see Fig. 1, has outlets 85 adjacent the periphery of the pulleys 21 where the yarn leaves the same and by flowing acid through this pipe downwardly through the openings or nozzles 85 the yarn is made to travel directly downwardly into the funnel member. Thus by proper manipulation of the valve I am able to thread the yarn or filament very expediently into the funnel member.

The operation of my invention is easily understood. The machine is operated in the usual manner and after a predetermined time the several pots become full and it is necessary to change them. My invention relates particularly to this method of changing them. The first operation consists of pulling the lever 57 which raises the funnels out of their respective .pots and later causes the main frame member, carrying the several pots, to rotate. This rotation breaks the filament at the bottom of the several funnels and by proper manipulation of the clutch lever 57 the frame member is rotated through 180, thus bringing the empty pots into alinement with the several funnel members.

Next the clutch member 5'7 is brought back to normal position and the funnel members drop into their proper pot. During this manipulation the motor 14 may remain continuously operative as the reciprocation of the funnels '72 up and down will be stopped as the frame member '70 will not be contacting with the bottom of the slot in the links 67 due to the lost motion connection therebetween. However, upon lowering the funnel members '72 this operation will immediately commence automatically.

Also, during this 180 rotation of the frame, the

gears 43 on the full pot will gradually disengage the bevel gears 44 which cause their rotation, and will thus free them from any driving engagement. Simultaneously, the braking flange 41 will contact with the rubber flange 45 and quickly bring the rotation of these pots to a standstill.

As soon as the pots are stopped the rod member 61 is reciprocated and the rayon cakes 50 drop out onto the conveyor 32. Clutch 29 is operated by the lever 30 and the rayon cakes are carried to the edge of the machine.

Having thus revealed this invention, I claim as new and desire to secure the following combinations and elements, or equivalents thereof, by Letters Patent of the United States.

I claim:

1. In combination, a supporting frame, a revolving frame therein, two sets of pots mounted in said frame at opposite sides thereof whereby one set is in upright and operative position and the other set is in inverted and inoperative position, cover means for the pots, a conveyor underneath the inverted pots and means to withdraw said cover members whereby the contents of the pots will drop onto the said conveyor.

2. In a machine of the type described, having a revolving pot adapted to receive yarn, the combination of a funnel adapted to guide the entry of said yarn into said pot, means for reciprocating said funnel, said means including a lost motion connection, and additional means for rendering the first mentioned means ineffective.

3. A device of the character described comprising, a frame, means to move the frame to an inverted position, a spinning pot revolubly mounted upon said frame so as to be located in an operative position when the frame is in its upright position, means to spin the pot, means to render said spinning means ineffective whenever the frame is moved to an inverted position and braking means automatically engageable with the pot whenever it is moved to its inverted position.

4. A mechanism consisting of frame, two sets of pots revolubly and slidably mounted thereon, means for moving the frame whereby one set of pots is positioned in an operative position and the other set is held in an inverted and inoperative position, funnel means extending into the operative set of pots, means for moving the funnel means axially of the pots into which they extend, means for revolving the pots, means for rendering the driving means inoperative upon movement of the pots to an inoperative position, and means for automatically withdrawing the funnel means from their positions within the operative pots before movement of the frame.

5. In combination with a spinning pot, a funnel member therefor, a frame structure supporting said funnel in the said pot, positive means including a lost motion connection, for raising said frame structure, said frame structure being free to return to its original position under the effects of gravity, and additional means for maintaining the frame structure in its upper position whereby it is prevented from reciprocation for the purpose described.

6. A mounting for a spinning pot comprising, a frame having two spaced plates, a spinning pot having a stub shaft extending from its bottom, said plates having alined holes therethrough, said pot being positioned between the plates and having its body portion snugly but revolubly received within one of the aforesaid holes and the stub shaft received within the other hole, a flange integral with the pot and extending radially therefrom between the plates, a gear on the end of the stub shaft, driving means mounted upon the frame and coacting with the gear to drive the same.

7. A device of the character described comprising, a frame, means for revolubly mounting said frame, a spinning pot revolubly mounted upon said frame so as to be located in an operative position when the frame is in its upright position, a prime mover, means connecting said prime mover and the spinning pot to revolve the same, means to render said revolving means ineffective whenever the frame is'moved to an inverted position and means, including a clutch mechanism, located between the prime mover and the frame for the purpose described.

JOSEPH YAZBIK. 

